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Finding the Third Proportional to 412,917.75 and 631,720.13

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Solution

The third proportional to 412,917.75 and 631,720.13 is: 966,464.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,917.75 : 631,720.13 = 631,720.13 : x
  2. Step 2: Convert to fraction form
    412,917.75/631,720.13 = 631,720.13/x
  3. Step 3: Cross multiply
    412,917.75x = 631,720.13 × 631,720.13
  4. Step 4: Simplify right side
    412,917.75x = 399,070,316,330.02
  5. Step 5: Solve for x
    x = 399,070,316,330.02/412,917.75
  6. Step 6: Final answer
    x = 966,464.43

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.